What is the longest -1 word (or the word worth most in Scrabble for words with the same amount of letters(which is just the addition of all the letter values of the original 'word', no constraints)), where a -1 word is defined as:

This 'word' does not have to be an actual word, just a string of letters.

one can replace each and every letter in the 'word' with another letter to create a word that appears in the dictionary.com database.

An example of a -1 word would be "gub," and the replacements one could make would be "rub," "gob," and "gun."

Sorry, I have been out and could not answer the comment section's question very quickly

$\begingroup$Could you explain example more? For each word you calculate a number according to sum formula? what is this formula and how do you get -1 for gub?$\endgroup$
– klm123Dec 27 '15 at 15:36

$\begingroup$@klm123 I think you misunderstand, '-1 word' is a title for a type of word defined as above$\endgroup$
– awesomepiDec 27 '15 at 15:44

1

$\begingroup$@klm123 I was confused at first as well, but it's just a string where you can replace any one of its characters and have it be an actual word afterwards$\endgroup$
– DrunkWolfDec 27 '15 at 15:50

$\begingroup$@DrunkWolf No, you need to be able to do that to every single letter - I'll change that.$\endgroup$
– awesomepiDec 27 '15 at 16:05

1

$\begingroup$@DrunkWolf What is irrelevant? If we're placing the word on an actual Scrabble board then the spacing of high value letters matters. If we get the bingo bonus, then a 7+ letter word with fewer edit 1 distance words will likely beat an 6- letter word with many edit 1 distance words.$\endgroup$
– DaveDec 28 '15 at 4:46